Electric heater.



W. DUBILER.

ELECTRIC HEATER.

APPLIGATION HLBD 133019.19112..

1,079,225. Patented Nov. 18, 1913.

2 SHEETS-SHEET 2.

ATTORNEYS yity of bends to enable a considerable length WILLIAM DUBILIEB, OF NEW YORK, N. Y.`

ELECTRIC HEATER.

Specification of Letters Patent.

Patented Nov. 18, 1913.

Application led December 19, 1912. Serial No. 737,642.

To all whom it may concern Be it known that I, WILLIAM Drminmn, a citizen of the United States, and a resident of the city of New York, borough of Brooklyn, in the county of Kingsand State of New York, have invented a new and Improved Electric Heater, of which the following is a full, clear. and exact descri tion.

l y 'invention relates -to elect-ric heaters, and the object t-hereof is to provide an improved radiating element for this class of devices, as wel] as improved means for sup'- porting the same tok enable it to be conveniently used in any location whereelectric wer can be obtained. To this end I provlde the heat radiating element which I use in connection with my invention with insulation and engaging devices to enable the element to be readily' secured in position; and Ialso provide a suitable framework made in sections which are held together by fastening devices, the fastening evices being so arranged that they also engage the heat radiating ele-ment so as to serve the additional function of mounting the radiating element.

Reference is to be `had to the accompanyf ing drawings forming'a part .of this:l speciication, in which the same characters of reference indica-te the same parts in all the views.

Figure 1 is a front view of my invention broken away to show some of the parts in section to illustrate how the heat radiating element is secured in position in the framework; Fig. 2 is a sectional view 'on the line2-2 of Fig. 1: and Fig. 3 is aI perspective view of Vthefrafmework in which the heat radiating element is carried.

Referring,` particularly to the drawings,

l my invention comprises in general a framef lwork'l, 1n wh1ch1s mounted a heat radiating element. 2,which is shown in the form of Ia 'continuous conductor having a. pluralofthe conductor to be arranged in a relatively Asmall space. These bends `are parallel andextend alternately in opposite directions, Vgiving'the conductor a'. zigzag shape.

jas shown `particularly in Fig. 1, and each of the parallel bends forms a radiating section when currcnt'travers'es the conductor. The framework 1 comprlses a pair of secl tions 3, one constituting' the front and the other the back of the framework, which is supported upon feet 4, and each of the sections 3 is made up of angle-bars 5 so as to give a section the form of an open rectangular frame. Each section, further, has projections 6 extending from its corners,

' these projections being perpendicular to the general plane of the sectlon and being L-` shaped in cross-section, so that when the sections are fitted together, as shown in Fig. 3, the projections 6 of the one will abut upon the projections 6 of the other, forming bars similar to the angle-shaped bars 5, extending between the corners of the sections for a purpose which will be set forth later. Each frame 3 also has a plurality of bosses 7 arranged to extend inward when the frames 3 are secured together to set up the framework, and so located that each of these bosses on one of the frames will be in `alinement wit-hone of the bosses on the other frame. The bosses 7 are lbored out, one of them being perforated from end to end and l theother having a threaded bore to receive and hold the bolt 8. Any number of ybosses may be used, but I havershown four as a. convenienty number, and it will 'be obvious that when the frames 3 are fitted together, as shown in Fig. 3, and the bolts 8 screwed up, the frames will be secured together and form the framework in which my heating ele-ment is located. It will be seen that the framework 1 constructed as outlined abme will have yits six sides ppen, and I prefer toy close these sides partially by the use of perforated plates 9 at the front'and back and a perforated strip 10 bent to form a rectangular frame to fill in the sides, top and bottom of the framework. The angle V bars 5 serve to engage the edges of the front and back perforated plates 9, and these angle Bars, together with the angle-shaped projections 6, likewise engage the edges of the bent strip 10. These plates 9 and the strip 10 may be secured t-o the amework 1 by any suit-able means, and it will be under-` stood that the plates 9 will be suitably recessed so as to give passageto the bosses 7.

. l The vheat radiating element, indicated as a whole by the numeral 2, comprises acontinuous length of conductor 11 formed with `parallel zigzag bends, asV above indicated, andso arranged in the framework thatthese bends or sections are vertical. Interwoven with these parallel vertical-bends are a plu- 110 site ends perforf'atedandthe Vinsulation rality: of threads 12 of insulating material which eXtend across the bends, and the ends the heat radiating element. These threads 13 are interwoven ywith the ends ofthe threads` 12, and it will be iseen that the threads 12 are arranged in pairs at different places between the top and bottom edges' of theiheat radiating element, and that along the top and bottom edges I use preferably four transverse threads interwoven with the threads 13. Thesel last-named threads are stidened by immersring the same ina solution of any suitable* tost-ien':f 1. V It will beseenfromthe abovedese-ript'ion bends and engaged by the `substance,`such as plaster of Paris,

v,them and impart to them insulating properties. In order to sup-port this heat radiating -:element in the framework 1 I employ strips of insulating materiallt, such as asbestos, and arrange these strips across the elementI nearj the to'pl "I reinforce these strips by 4jeans of 1metallie strips orplates 15, one of l' Y `25 K which" engages the', outer i ,face-l of each strip 114. These l strips',,I'l'fa'l'id 1*5 have theiroppo is likewise perforated td give" passage toy the bolt-s. 8, and it will be seenf'rom the draw ings that when the frames arek fitted together with the heat radiating element between theml in such position that the openings through the strips 14 and 15 andthe insulation 13are in alinement with the bores of the bosses, the bolts 8 will serve not only to secure the the heat radiating element in position.

v As stated above, the heat radiating element comprises a single continuous length of conductor, the terminals of which are covered by 'insulating sleeves 16 and connected to binding posts 17. These binding posts are mounted in the front frame 3 and providedf with suitable insulating sleeves 18,'and when 'these'fbinding `posts are connected to a suit-` "ableffA source of power,

such as' an electric lighting circuit, current wi the element 11, traveling up and downv the vloends thereof, entering at onebinding'post and tleaving at the other. During its passage througlitheel'ement electric power utilized Iis converted into heat and this heat is Yradiapartment.

The framework '1 may be madel of,` some suitable metal, such as aluminum, which is` material." Obviously `I may use gauze in-l stead of these'plates,` and I may also employ -any suitableT insulating substance instead of the threadsl 'and 13. The conductor' 11 is;

made of any fmetallic substance or v"alloy 'which willhave "the property -of opposing cutis-'rages to suit the apartment in which the @9651511.9@ heats up,` 'that lthe effect is soon noticeable.

pair, and the'V eliciency thereofv iis andfsupportit in' the' frames 3 together, but also .to hold ll pass through ported adjacent its `'15 thatfext'end fromfendvto'end. `'llhesebars 1 i are comparatively narrow,so asn-ot to mutesufficient` .resistance tothe; liowiof l,'current to cause the element to heat up and radiate yheat'rlf'course can be made in differsame is to be used.` The radiating element become incandescent, Lbut, merely and this heat is radiatedsireadilv The bars 14 and 15 which engage the heating element near the top thereof serve as an additional sup-porting means, and iffor any' reason any of, thefbends.rar-sections thereof should become' distorted for broken,v they will :prevent contact being' made l`1,between the sameand the framework anda the formation of 'a groundforthe current. i f. 'u

that my radiator comprises relatively few parts and is'exceedingly simple in its construction. 1

The heater canbe readily assembled :and as readily taken apart-lforreplacement ory resuch-that a' marked effect can be produced evenby the' smaller sizes in whi 4hthe same may b e made. 1 The 'conducting' element 11.- :.whichf comprises the zigzag bends for forming the heating sections can of course be.used in other relations and for other purposes than heatl ing a room.`- For example,- I might use this "elementas a resistance'device t'of be used in ,fthestarting of motors, and in sucfhyafcase l :w ould` Emake' up this' ele-ment ands-,insulate samev manner-:as is *shown ppon `the drawings forming la part of this application. 1 y

The heating element construction as shown and described is a flexible structure, and in order to be held 'in proper position it isclamped between the insulation-faced bars 15 that extend the full length of the heating element, 'y gripping the Isame yat zall points so asfto sustain the weightthereof.: Itxwill be obseri-ed that thethreads l512 extend-horizontally so that they donotserv'e tol sustain theuveight of"the-'wire orfcondu'ctor of lthe element, but simply hold the vadjacent vertical sections of the element in spaced relaits ends,asby lugs 7 'anda bolts 8, the'lni dle l offth'e element.wouldasagronaccount of its ated through the perforated plates intov the i` iexibility.kv lThe elementL :therefore is suptoprby the clampingbars rially interfere with the radiation oil-heat, and onlya few*v rows of threadsKV 12 are employed for thev purpose of exposingas great 4an area as possible of the conductor for the 1 radiation of heat. IThe heatingelement in reality is an open-w o'rk or mesh structureopen at both sides sothat-heat can radiate in bothv directions. Since the hea-ting element is vsupported mainly lby the-bars '15, thelower Setl] refranes of ings 7 and bolts 8 serve merely to hold the flower portion of the element steady and in central position.

I wish to have it understood that the foregoing description taken in connection with the drawings discloses but one enibodiment of my invention, and l. do not care to be limited to the exact details thereof, but reserve to myself the right to make whatever' changes in the shape, size and arrangement. of the parts fairly fall lwithin the scope and spirit of my invention.

.Having thus described my invention, I claim as new and desire to'seeure by Letters Patent:

t. rThe combination of a flexible elementfornied by a conductor bent back and forth into vertical sections', rows of threads of insulation interwoven with the said sections and extending' horizontally, and clamping bars disposed between two adjacent rows of threads and at i'ipposite sides of the element and engaging all the sections thereof to support the said element rigidly from end to end.

A' l'ieating element comprising a conductor bent back and forth into verticallydisposed sections, threads of .insulation in` tei-woven with the sections and extending transversely thereto, and sag pre venting' and clamping elements in the form of bars engaging` opposite sides of the element and extending from end to end thereof in-the direction of the said threads, in combination with a easing inclosing the element and bars composed of parts clamped together and engaged with the said bars for pressing' the barsl against the element and thereby holding the same in place.

3. The combination of a casing, a flexible heating element disi'iosed therein, sag preventing and clamping bars secured within the casing and engaging opposite sides of the element adjacent the upper edge thereof to support the weight of the element.v and means in the lower portion of the easing for engaging thtv element to cooperate with the. bars for holding the element in position.

i. The combination ot' a casing composed of separable sections, alining, inwardly-disposed members on the sections, a Ilexible openwort heating element extending between said members, and a two-part clau'iping means separate troni the element and casing' and engaged with the members for engaging opposite sides of the element and extending from one end thereof to the other to support the -weight of the element throughout its length.

The combination of a heating element having tabric ends of insulationfa casing inclosing the element, means passing through the fabric ends to hold the element in place, and means held by the first mentioned means for frictionally engaging oppositesides of the element and extending from end to end thereof to support the weight of the element between the fabric ends.

6. The combination of a casing composed of two sections and open at all sides7 per forated plates at two opposite sides, a perforated element extending around the other sides and disposed between the first mentioned plates for holding the latter in position against the casing, and fasteners for clamping the two sections together.

7. The con'ibination of a framework comprising` a front section and a rear sect-ion, each of said sections comprising angle bars to form an open rectangular frame, each of said sections likewise having projections L- shaped in cross-section extending from the corners thereof at right-angles to the plane of the framework, a plurality of bosses carried by er "h of said sections extending inward of the framework, each boss of one section being` in alinement with a boss of the other section, a heating element located between the inner ends of each pair of bosses, said bosses having bores therein to receive fastening means to hold the sections together, and the heating element in position, and perforated plates, the edges of which are engaged by the angle bars and the L- shaped projections to inelose the heating element.

8. The combination of a framework comprising a front section and a rear section, each of said sections comprising angle-bars forming a rectangular frame, and each seetion having projections L-shaped in crosssection extending from its corners perpendicular to the plane of the frame, bosses carried by each section and arranged to eXs tend inward of the framework, each boss of one section being arranged to be in alinement with the boss of the other section, a heat radiating element arranged between the inner ends of each pair of bosses, said bosses having bores therein, and fastening means received by the bores ot' said bosses and engaging the heat radiating element to hold the sections together and the element in position.

ln testimony whereof I have signed my name to this sileciiieation in the presence of two sulrseribingl witnesses.

iVlLLlf A M DUBILIE li. lVitnesses EL F. Nickel., Piume D. Roiimmis. 

